250 



THE CULTIVATED EVERGREENS 



G. Direction of leaves spreading upward and 

 outward. 

 H. Length of leaves H~/€ inch; resin-ducts 

 internal. 



I. Leaf with 8-12 Hnes of stomata in each 



band: bracts of cone much exserted. . . 24 

 II. Leaf with 4-8 lines of stomata in each 

 band: bracts not or slightly exserted. .25. 

 HH. Length of leaves about 1 inch; resin- 

 ducts marginal (internal in No. 7). 

 I. Branchlets soon glabrous, yellowish: 



buds thinly resinous 



u. Branchlets densely pubescent, brown: 

 buds very resinous. 

 J. Apex of leaves truncate or emargi- 



nate: bark smooth 3. 



jj. Apex of leaves acutish to obtuse: bark 



flaky 7. 



GG. Direction of leaves forward. 



H. Width of leaves ^ inch or more. 



I. Pubescence of branchlets pale, short: 

 leaves about 1 inch long; resin-ducts 

 marginal 27. 



II. Pubescence of branchlets 



A. Fraseri 

 A. balsamea 



4. A. Jcoreana 



A. Veitchii 

 A. squamata 



fous: leaves ^-% inch long; resin- 

 ducts internal 5. 



HH. Width of leaves ^'j-xe inch, to 1 1-2 inches 

 long; resin-ducts internal. 

 I. Branchlets smooth, minutely pubescent : 

 leaves with 4-5 lines of stomata in 



each band 1 . 



II. Branchlets slightly grooved, withh airs 

 in the grooves: leaves with 7-8 lines 



of stomata in each band 2. 



EE. Buds not resinous: leaves with marginal resin- 

 ducts: cones green. 

 F. Foliage not pectinate. 



G. Cone with hidden bracts: leaves spreading 



upward and outward 21. 



GG. Cone with exserted and reflexed bracts: leaves 



directed forward 22. 



FF. Foliage pectinate: cone with exserted bracts 23. 



DD. All branchlets glabrous (often slightly hairy in Nos. 



8 and 9) : resin-ducts marginal. 



E. Apex of leaves obtuse or emarginate, rarely 



acutish : branchlets bro^vn : cones purple or violet. 



F. Winter - buds resinous: leaves slender, ^^-1 



inch long, emarginate. 



G. Leaves not or scarcely revolute; resin-ducts 



internal on fertile branches 8. 



GG. Leaves revolute at the margin; resin-ducts 



marginal 9. 



A. amabilis 

 A. Mariesii 



A. sihirica 



A. sachalinensis 



A. cilicica 



A. Nordmanniana 

 A. alba 



A. Fargesii 

 A. Delavayi 



